T minus 25 by end of March

Today marks day 2 of the T25 program. I am not utilizing their recommended shakes, but do supplement with another form of protein. I have done Jillian Michaels 7 day shred, 30 day shred and other forms of "at home" work outs; however, I tend to lose motivation by the second to third week. I am looking for some accountability out there, because this is a transitional year for me (Big 40) and I want to look and feel great! it's now or never!